The GRACO 208997 is a manual back pressure regulator designed for low-pressure, corrosion-resistant applications. It is constructed from stainless steel and is intended to maintain system pressure in fluid circulation systems, regardless of flow demand, making it suitable for use with catalyst and waterborne materials in industrial finishing processes.

Key Features:

• Back Pressure Regulator
• 1-1/4 (f) x 1-1/4 (f)
• Stainless steel wetted materials
• 200 psi maximum
• Catalyst and waterborne materials
• Hardened stainless steel seat for low wear and long life
• PTFE/Elastomer hybrid diaphragm for wear resistance and accurate responsiveness
• Large orifice accommodates high volume flow rates
• Manual operation with gauge for pressure monitoring
• Air operated models available for automated control (conversion kit 15J498)

Applications:
Used in industrial fluid circulation systems, particularly in finishing processes such as paint spraying, to maintain consistent system pressure and protect sensitive materials from excessive shear.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance within GRACO equipment.
• Ensure proper alignment and secure connection of inlet and outlet (1-1/4 in. NPT female threads)
• Use appropriate thread sealant for leak-free installation
• Regularly inspect diaphragm and seat for wear and replace as needed
• Monitor system pressure using the integrated gauge
• Follow manufacturer’s guidelines for installation and maintenance
• Use only compatible fluids and materials as specified
• Schedule routine maintenance to ensure long service life